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2420715065 = 5484143013
BaseRepresentation
bin1001000001001001…
…0010111000111001
320020201000001210112
42100102102320321
514424200340230
61040112154105
7113662511216
oct22022227071
96221001715
102420715065
11103248106a
12576838935
132c768c6a2
1418d6d2b0d
15e27b8d95
hex90492e39

2420715065 has 4 divisors (see below), whose sum is σ = 2904858084. Its totient is φ = 1936572048.

The previous prime is 2420715053. The next prime is 2420715067. The reversal of 2420715065 is 5605170242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1739557264 + 681157801 = 41708^2 + 26099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420715065 - 24 = 2420715049 is a prime.

It is a super-2 number, since 2×24207150652 = 11719722851835908450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420715067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242071502 + ... + 242071511.

It is an arithmetic number, because the mean of its divisors is an integer number (726214521).

Almost surely, 22420715065 is an apocalyptic number.

It is an amenable number.

2420715065 is a deficient number, since it is larger than the sum of its proper divisors (484143019).

2420715065 is an equidigital number, since it uses as much as digits as its factorization.

2420715065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484143018.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 2420715065 is about 49200.7628497770. The cubic root of 2420715065 is about 1342.7069111802.

The spelling of 2420715065 in words is "two billion, four hundred twenty million, seven hundred fifteen thousand, sixty-five".

Divisors: 1 5 484143013 2420715065